Male hermaphroditism with bilateral testes, well-formed Müllerian structures, and 45,X chromosome complement

Area of Science:

• Genetics
• Endocrinology
• Reproductive Biology

Background:

• The 45,X karyotype, typically associated with Turner syndrome, usually presents with female characteristics.
• Ambiguous genitalia in individuals with a 45,X karyotype is rare and presents diagnostic challenges.
• Previous understanding suggested that 45,X karyotype patients generally do not require surgical intervention.

Observation:

• A patient presented with short stature, an enlarged phallus, normal internal female reproductive organs (vagina, uterus, fallopian tubes), and bilateral testes.
• Peripheral leukocyte analysis revealed a 45,X karyotype.
• This represents a unique presentation of a male hermaphrodite with a 45,X karyotype.

Findings:

• The patient exhibited a combination of male and female characteristics with a 45,X karyotype.
• The presence of bilateral testes in conjunction with a 45,X karyotype and ambiguous genitalia is highly unusual.
• This case challenges the established diagnostic and management paradigms for 45,X karyotype individuals.

Implications:

• This case suggests that the presence of ambiguous genitalia in patients with a 45,X karyotype necessitates thorough surgical exploration.
• It highlights the need to reconsider the general rule of non-exploration for 45,X karyotype patients when genital ambiguity is present.
• Further research into the genetic and developmental pathways underlying such presentations is warranted to refine clinical management.